﻿/*
 * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
 * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
*/

using System.Threading;
using NUnit.Framework;
using QuantConnect.Util;

namespace QuantConnect.Tests.Common.Util
{
    [TestFixture]
    public class ReaderWriterLockSlimExtensionsTests
    {
        [Test]
        public void EntersReadLock()
        {
            var slim = new ReaderWriterLockSlim();

            var token = slim.Read();

            Assert.IsTrue(slim.IsReadLockHeld);
            slim.ExitReadLock();

            slim.Dispose();
        }
        [Test]
        public void ExitsReadLock()
        {
            var slim = new ReaderWriterLockSlim();

            var token = slim.Read();
            token.Dispose();
            Assert.IsFalse(slim.IsReadLockHeld);

            slim.Dispose();
        }

        [Test]
        public void EntersWriteLock()
        {
            var slim = new ReaderWriterLockSlim();

            var token = slim.Write();
            Assert.IsTrue(slim.IsWriteLockHeld);
            slim.ExitWriteLock();

            slim.Dispose();
        }
        [Test]
        public void ExitsWriteLock()
        {
            var slim = new ReaderWriterLockSlim();

            var token = slim.Read();
            token.Dispose();
            Assert.IsFalse(slim.IsReadLockHeld);

            slim.Dispose();
        }
    }
}
